Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 108  ·  M 97  ·  NGC 3556  ·  NGC 3587  ·  Owl Nebula
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M97 Owl Nebula & M108 Surfboard Galaxy (560mm), 


M97 Owl Nebula & M108 Surfboard Galaxy (560mm)
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M97 Owl Nebula & M108 Surfboard Galaxy (560mm)

Technical card

Imaging telescopes or lenses: Canon EF 400mm f/5.6L USM

Imaging cameras: Canon EOS 70Da

Mounts: SkyWatcher Star Adventurer

Guiding telescopes or lenses: Orion Mini 50mm Guide Scope

Guiding cameras: Lacerta MGEN 2

Software: Pleiades Astrophoto PixInsight  ·  Adobe Lightroom

Filters: Astronomik CLS-CCD Clip Filter

Accessory: Kenko C-AF 1.4x MC4 DXG

Dates:Feb. 16, 2017

Frames:Astronomik CLS-CCD Clip Filter: 12x120" ISO1600

Integration: 0.4 hours

Darks: ~12

Bias: ~12

Avg. Moon age: 20.08 days

Avg. Moon phase: 71.34%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details

Astrometry.net job: 3475049

RA center: 11h 13' 6"

DEC center: +55° 21' 3"

Pixel scale: 1.552 arcsec/pixel

Orientation: 88.517 degrees

Field radius: 0.942 degrees

Resolution: 3612x2461

Locations: Derendingen 454m, Solothurn, SO, Switzerland


Test shot with EF 400mm f/5.6L and Kenko 1.4x converter at 560mm f/8. Only 24 minutes... in a cloud free phase.
With much more subs it could be an interesting combination...


Sky plot

Sky plot


M97 Owl Nebula & M108 Surfboard Galaxy (560mm),